I'm going to try really hard to go into it with an open mind.
I think it's awesome, and it scratches the Slayer-itch. Sure, it sounds like latter-era Slayer, but there are also riffs that are not very prevalent in Slayer, and since it's his solo band, he can craft them into songs (Trophies of the Tyrant has a really fun, bouncy/groovy riff that reminds me of Slayer's Bloodline).
Mark Osegueda kills it on every song, and I think he brings the record to a higher place than if it were a new Slayer record and Tom sang the songs. He was a fantastic choice to sing on the album.